R5F21346CNFP#U0 Renesas Electronics America, R5F21346CNFP#U0 Datasheet - Page 13

• Manufacturer Part Number: R5F21346CNFP#U0
• Description: MCU 1KB FLASH 32K ROM 48-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/34Cr

Specifications of R5F21346CNFP#U0

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, PWM, Voltage Detect, WDT
• Number Of I /o: 43
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

10.
11.
10.1
11.1
11.2
11.3
11.4
11.5
11.6
11.7
9.9.1
9.9.2
9.9.3
9.9.4
10.1.1
11.1.1
11.1.2
11.1.3
11.1.4
11.1.5
11.2.1
11.2.2
11.2.3
11.3.1
11.3.2
11.3.3
11.3.4
11.3.5
11.3.6
11.3.7
11.3.8
11.3.9
11.3.10 Interrupt Priority Level Selection Circuit ......................................................................................... 163
11.4.1
11.4.2
11.4.3
11.4.4
11.4.5
11.4.6
11.4.7
11.5.1
11.6.1
11.6.2
Protection .................................................................................................................................... 148
Interrupts ..................................................................................................................................... 149
Register .................................................................................................................................................. 148
Overview ............................................................................................................................................... 149
Registers ................................................................................................................................................ 154
Interrupt Control .................................................................................................................................... 157
INT Interrupt ......................................................................................................................................... 164
Key Input Interrupt ................................................................................................................................ 168
Address Match Interrupt ........................................................................................................................ 170
Timer RC Interrupt, Timer RD Interrupt, Synchronous Serial Communication Unit Interrupt, I
Interface Interrupt, and Flash Memory Interrupt (Interrupts with Multiple Interrupt Request Sources)
................................................................................................................................................................ 172
Stop Mode ......................................................................................................................................... 146
Wait Mode ........................................................................................................................................ 146
Oscillation Stop Detection Function ................................................................................................. 147
Oscillation Circuit Constants ............................................................................................................ 147
Protect Register (PRCR) ................................................................................................................... 148
Types of Interrupts ............................................................................................................................ 149
Software Interrupts ........................................................................................................................... 150
Special Interrupts .............................................................................................................................. 151
Peripheral Function Interrupts .......................................................................................................... 151
Interrupts and Interrupt Vectors ........................................................................................................ 152
Interrupt Control Register
(TREIC, S2TIC, S2RIC, KUPIC, ADIC, S0TIC, S0RIC, S1TIC, S1RIC, TRAIC, TRBIC, U2BCNIC,
VCMP1IC, VCMP2IC) .................................................................................................................... 154
Interrupt Control Register (FMRDYIC, TRCIC, TRD0IC, TRD1IC, SSUIC/IICIC) ..................... 155
INTi Interrupt Control Register (INTiIC) (i = 0 to 4) ....................................................................... 156
I Flag ................................................................................................................................................. 157
IR Bit ................................................................................................................................................. 157
Bits ILVL2 to ILVL0, IPL ................................................................................................................ 157
Interrupt Sequence ............................................................................................................................ 158
Interrupt Response Time ................................................................................................................... 159
IPL Change when Interrupt Request is Acknowledged .................................................................... 159
Saving Registers ............................................................................................................................... 160
Returning from Interrupt Routine ..................................................................................................... 162
Interrupt Priority ............................................................................................................................... 162
INTi Interrupt (i = 0 to 4) .................................................................................................................. 164
INT Interrupt Input Pin Select Register (INTSR) ............................................................................. 164
External Input Enable Register 0 (INTEN) ...................................................................................... 165
External Input Enable Register 1 (INTEN1) .................................................................................... 165
INT Input Filter Select Register 0 (INTF) ........................................................................................ 166
INT Input Filter Select Register 1 (INTF1) ...................................................................................... 166
INTi Input Filter (i = 0 to 4) ............................................................................................................. 167
Key Input Enable Register 0 (KIEN) ................................................................................................ 169
Address Match Interrupt Enable Register i (AIERi) (i = 0 or 1) ...................................................... 171
Address Match Interrupt Register i (RMADi) (i = 0 or 1) ................................................................ 171
A - 4
2
C bus